https://spaceweather.com/
https://www.swpc.noaa.gov/news/g2-moderate-geomagnetic-storm-watch-issued-11-october-2021
Says 'midday' today, Anon:
Region 2882 (N17, L=157) produced an M1/2b flare (with Type-II and IV radio emissions) at 09/0638 UTC, and an associated full-halo CME was observed in LASCO C2 imagery beginning at 09/0712 UTC. Event analysis and model output suggest CME arrival around midday on 11 Oct, with lingering effects persisting into 12 Oct.